PARTICLE THEORY 2 vocab

Question 1

Matter

Answer 1

anything that takes up space and can be weighed

Question 2

Particle theory

Answer 2

All matter is composed of tiny indivisible particles too small to see. These particles do not share the properties of the material they make up. There is nothing in the space between the particles that make up matter. The particles which make up matter are in constant motion

Question 3

Mechanical mixture

Answer 3

When different kinds of matter are visible in the mixture

Question 4

Solubility

Answer 4

The maximum amount of solute that can dissolve in a given amount of solvent

Question 5

Saturated

Answer 5

full of moisture : made thoroughly wet

Question 6

Soluble

Answer 6

capable of being dissolved in a liquid

Question 7

Distillation

Answer 7

process involving the conversion of a liquid into vapour that is subsequently condensed back to liquid form

Question 8

Dissolving

Answer 8

to disintegrate, break up, or disperse

Question 9

Sedimentation

Answer 9

The process of settling down of heavier insoluble particles at the bottom of a liquid

Question 10

Properties of matter

Answer 10

Colour, density, volume, mass, boiling temperature, and melting point are the six main physical properties. Shape, size, hardness, flexibility, texture, odour, temperature, volume, length, freezing point, electrical conductivity, and so on are some further examples.

Question 11

Mixture

Answer 11

a substance made by combining two or more different materials in such a way that no chemical reaction occurs

Question 12

Solution

Answer 12

a homogeneous type of mixture of two or more substances

Question 13

Solvent

Answer 13

a homogeneous type of mixture of two or more substances

Question 14

Unsaturated

Answer 14

a solution that contains less than the maximum amount of solute that is capable of being dissolved

Question 15

Insoluble

Answer 15

a substance (solid) that will not dissolve in a solvent even after mixing

Question 16

Chromatography

Answer 16

a technique used to separate those solutes of a mixture that are soluble in the same solvent

Question 17

Filtration

Answer 17

the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles

Question 18

Pure Substance

Answer 18

a single kind of matter that cannot be separated into other kinds of matter by any physical means

Question 19

Heterogeneous

Answer 19

differing in kind

Question 20

Boiling point

Answer 20

the temperature at which it starts to change into steam or vapour

Question 21

Solute

Answer 21

a dissolved substance

Question 22

Supersaturated

Answer 22

containing more solute than a saturated solution and therefore not in equilibrium

Question 23

Vapour

Answer 23

gas or extremely small drops of liquid that result from the heating of a liquid or solid

Question 24

Evaporation

Answer 24

process by which an element or compound transitions from its liquid state to its gaseous state below the temperature at which it boils

Question 25

Decanting

Answer 25

to draw off (a liquid) without disturbing the sediment or the lower liquid layers.

Question 26

element, compound

Answer 26

Elements are pure substances made up of only one type of atom. Compounds are pure substances made up of two or more different types of elements

Question 27

Homogeneous

Answer 27

of the same or a similar kind or nature.

Question 28

Melting point

Answer 28

he point at which materials changes from a solid to a liquid

Question 29

Concentration

Answer 29

a measure of the amount of solute that has been dissolved in a given amount of solvent or solution

Question 30

Dilute

Answer 30

the process of adding a solvent to a solution to reduce the concentration of the solute

Question 31

Sieving

Answer 31

the process of removing particles from a mixture based on differences in particle size

Question 32

Magnetism

Answer 32

the process of separating components of mixtures by using a magnet to attract magnetic substances

Question 33

Separation techniques